add alpine esxi example

examples/hcl/linux/build.alpine.pkr.hcl

@@ -29,6 +29,13 @@ EOF
     boot_wait               = "10s"
   }
 
+  source "source.vmware-iso.esxi-base-alpine-amd64" {
+    name                    = "3.12-from-esxi"
+    iso_url                 = local.iso_url_alpine_312
+    iso_checksum            = "file:${local.iso_checksum_url_alpine_312}"
+    boot_command            = local.alpine_312_floppy_boot_command_vsphere
+  }
+
   provisioner "shell" {
     inline = ["echo hi"]
   }

examples/hcl/linux/source.esxi-vmware-iso.pkr.hcl

@@ -22,3 +22,28 @@ source "vmware-iso" "esxi-base-ubuntu-amd64" {
     remote_datastore        = var.datastore
     remote_private_key_file = var.remote_private_key_file_path
 }
+
+source "vmware-iso" "esxi-base-alpine-amd64" {
+    headless                = var.headless
+    boot_wait               = "10s"
+    guest_os_type           = "otherLinux64Guest"
+    floppy_files            = local.floppy_files_alpine_vsphere
+    ssh_port                = 22
+    ssh_timeout             = "10000s"
+    ssh_username            = "root"
+    ssh_password            = var.alpine_password
+    tools_upload_flavor     = "linux"
+    shutdown_command        = "poweroff"
+    vmx_data = {
+        "cpuid.coresPerSocket" = "1"
+        "ethernet0.pciSlotNumber" = "32"
+    }
+    vmx_remove_ethernet_interfaces = true
+
+    remote_type             = "esx5"
+    remote_host             = var.esxi_host
+    remote_username         = var.esxi_user
+    remote_password         = var.esxi_password
+    remote_datastore        = var.datastore
+    remote_private_key_file = var.remote_private_key_file_path
+}